Storm
A Legacy deck, by Sam Black
8th place at a tournament in Magic Online on 2016-05-13

Maindeck:

Artifacts
4 Lion's Eye Diamond
4 Lotus Petal

Instants
1 Ad Nauseam
4 Brainstorm
4 Cabal Ritual
4 Dark Ritual
1 Rain of Filth

Sorceries
4 Cabal Therapy
2 Dark Petition
3 Duress
4 Gitaxian Probe (Banned in Legacy)
4 Infernal Tutor
1 Past in Flames
4 Ponder
1 Tendrils of Agony

Basic Lands
1 Island
1 Swamp

Lands
1 Bayou
4 Misty Rainforest
4 Polluted Delta
1 Tropical Island
2 Underground Sea
1 Volcanic Island

Sideboard:
1 Sensei's Divining Top (Banned in Legacy)
2 Xantid Swarm
4 Abrupt Decay
1 Echoing Truth
2 Flusterstorm
1 Hurkyl's Recall
1 Krosan Grip
1 Empty the Warrens
2 Tendrils of Agony